Question about Building Materials
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Posted on Jan 02, 2017
The sensor eye - or more likely, the other end, the sensor light - probably got knocked out of alignment. The eye should have an LED on it - possibly one that glows green when it's ready to close or red when it's obstructed or out of alignment. Try adjusting the light until the LED on the receiver glows green.
Posted on Dec 07, 2008
I WOULD GO TO CHAMBERLAIN.COM THEY HAVE ALL THE MANUALS FOR THESE OPENERS AVAIABLE FOR FREE DOWNLOAD IN PDF FORMAT.
THE MANUAL WILL HAVE A GREAT TROUBLESHOOTING SECTION.
HOPE THIS HELPS
Posted on May 28, 2010
HAVE SOMEONE PUT IN THE CODE AND THEN HOLD DOWN THE ENTER KEY. IF THE LED NEXT TO THE PROGRAM BUTTON FLASHES RAPIDLY THE KEYPAD IS SENDING A CODE. TRY REPROGRAMING THE KEYPAD.
IF THE LED DOES NOT FLASH, NO RADIO SIGNAL IS BEING SENT THE KEYPAD IS BAD.
Posted on May 28, 2010
If when you try to close the door the main light flashes 10 times and the door reverses to the open position you have a door sensor problem. Make sure they are pointed at one another and the small light on each one is lit and not flickering. If you cannot get both lights to come on you have a bad sensor.
Posted on Jul 26, 2010
Where the belt attaches to the trolley carriage which attaches to the door there is a black adjustment nut with a spring on it. Tighten it up more by turning it clockwise until the belt tightens up. The belt will droop a little when the door is all the way shut normally but should not during operation. If you tighten it up too much the belt will slap on the rail during operation. Make sure the spring is set on the adjustment screw too. This holds the belt tight over time. Thanks BB
Posted on Oct 11, 2010
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